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Design and Verification of Hardware Building Blocks for High-Speed and Fault-Tolerant In-Vehicle Networks

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8 Author(s)
Federico Baronti ; Università di Pisa, Dipartimento di Ingegneria dell'Informazione: Elettronica, Informatica, Telecomunicazioni, Pisa, Italy ; Esa Petri ; Sergio Saponara ; Luca Fanucci
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This paper presents the design, implementation, and validation of a FlexRay transceiver and a SpaceWire (SpW) router and interface, which constitute the main hardware building blocks of the two in-vehicle communication standards. The FlexRay protocol features data rates up to 10 Mb/s and time- and event-triggered transmissions, along with scalable fault-tolerance support, and it is expected to become the standard network for X-by-wire and active safety automotive systems. However, collision avoidance and driver-assistance applications based on camera/radar sensors require data rates up to hundreds of megabits per second as well as fault tolerance, features that can hardly be covered by current or expected automotive standards. In this scenario, a promising technology seems to be the new SpW protocol, currently used in avionics and aerospace.

Published in:

IEEE Transactions on Industrial Electronics  (Volume:58 ,  Issue: 3 )